Jar-closure.



No. 394,613. PATENTED JULY 28, 1908. J. P.- LYON. JAR CLOSURE. APPLIO-ATION FILED JAN. 21, 1907.

WITNESSES- JULI'AN P. 11YON, or DETROIT, MICHIGAN.

JAR-CLOSURE.

Specification of Letters Patent.

Patented July 28, 1908.

Application filed January 21,1907. Serial No. 353,220.

To all whom it may concern:

Be it known that- I, JULIAN 'P. LYON, a citizen of the United States, residiplg at Detroit, county of Wayne, State of ichi an, have invented a certain new and useful mrovement in J ar-Closures, and declare the ollowing to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This mvention relates to jar closures; it has for itsobject an improved means of hermetically sealing a jar or other similar vessel.

The main feature of the invention consists in closing the mouth of the jar with a wax stopper, which is revented from cleaving away from and leaving the walls of the jar by a flange that projects over the wax or some-- times into the wax.

In sealing jars with waxplugs, it has been found experimentally that the edge of the plug is liable to cleave from the wall of the jar into which the plug fits, and that differences in temperature which expand and contract the contents of the jar, in time; and sometimes very quickly force an opening between the wax and the jar somewhere around the peri hery of the plug. If, however, the plug be iield securely to the jar at this point,

so that instead of being the weakest point of the fastening, it is the strongest, and the expansion and contraction of the contents of the jar is caused to bend the plug at the center point instead of bendin it at the edges, the plug remains in close sea ing contact with the ar, and the sealing remains intact.

In the drawings :Figure 1, is a sectional elevation of a 'ar and plug protected by a ring that is held to the mouth of the jar. Fig. 2, is a jar with a plug protected by a sheet metal ring. Fig. 3, shows a plug protected by a ring provided with a screw neck. Fig. 4 shows a jar with a plug protected by a ring and a screw necked holder therefor.

In all the forms shown, the jar 1 is sealed by a plug of wax 2, which is preferably poured into the mouth of the jar while in a molten condition and allowed to harden therein.

In the formsshown in Figs. 1, 2, 3, and 4, the wax plug is supposed to have been poured directly on the contents.

In the form shown in Fi' 1, the plug is held in place by a ring 6, an the ring 1s held by a band 7 with inturned flanges 8 turned over the ring and inturned flan es 9 turned under a projection 10 on the neo of the jar.

In the form shown in Fig. 2, the wax plug 2 is held in lace b a thin metal ring 11, which exten s into t e body of the wax and forms a complete seal between the ring 11 and the body of the lug 2. The ring 11 rests on a gasket 12, W ich may be of rubber or similar material, and the ring is held by a band 17, the upper flange of which 18 is turned over the ring turned under theneck.

In the form shown in Fig. 3, the ring 21 of thin metal is made integral with a screw neck 22, which holds the ring 21 in packing gasket 20. Flanges of t extend into the wax plug 2.

In the form shown in Fig.4, the sheet metal ring 31 overhangs, like an inturned flange, the mouth of the jar, being attached to the screw-threaded top of the jar by means of the complementarily threaded screw neck 32. This inner overhanging edge of the ring 31 engages over the peripheral edge of the dome piece 34 which is bent, intermediate its 'center and its (peri hery to the form shown, with its points e ge sunk into the wax. Of course in the sectional figure but two points of this downwardly pointing art are shown. The expansion of the wax p ug 2 under excessive heat of the contents of the jar is thus provided for in the normally unoccupied space at the top of the dome.

It should of course be understood that the several well known equivalents of wax may be used as a substitute therefor without departing from the intended scope of this invention.

What I claim is 1. In combination with a jar, a wax lug closing the mouth thereof, and a band he d to the top of the jar and serving to hold said e ring 21 in place, substantially as described.

2. As a means for sealing jars, in combination with a wax plug adapted to rest peripherally upon a sup orting portion of the jar mouth, an inward y projecting collar engaging against the to of said plug to prevent its unintended dispiacement, substantially as described.

In testimony whereof, I, sign this specification in the presence of two witnesses.

JULIAN P. LYON. Witnesses MAY E. Korr, CHARLES F. BURTON.

11, and the flange 19 is place on a 

